Hi FC, question! I've been using TCR on the v2 for a couple months with success, but my resistance often changes (anywhere from .26-.3). It's cold this time of year, so sometimes the device can be cold. I try to warm it for a few mins before use.
On AF I have two profiles, a wattage and TCR profile. The resistance is locked on TCR, on wattage the resistance unlocked. Often i switch between profiles before I start vaping to see my resistance, if it's too high, I run a bowl in wattage until I can get back to a PC to adjust the locked resistance on TCR profile. I apologize if this is basic, but it's been frustrating as I thought once I set up TCR i'd generally be "set up". Luckily, wattage works well. Splinter was kicking clouds at 45w.